VIZ Media announced the releases of new manga series in the second quarter of 2009. The ten titles and the release dates are as follows:

DOGS PRELUDE (already in stores)
Ikigami (May 12th)
Detroit Metal City (June 9th)
Gestalt (June 16th)
Honey Hunt (already in stores)
Rasetsu (June 2nd)
Tail of the Moon: The Other Hanzo (June 2nd)
Dinosaur Hour! (already in stores)
Leave It To Pet! (May 5th)
Pocket Adventures 2nd edition (June 2nd)

VIZ Media also announced the release of Asada Jiro's novel "THE STATIONMASTER (Poppoya)". The novel won the 117th Naoki Prize. Its manga adaptation "Poppoya Love Letter" was published in Afternoon magazine in 1999.

Sources:
VIZ Media Press Release
VIZ Media Press Release